Abstract：
:Inheritance is believed to play a major role in 5-10% of breast cancer. The breast cancer susceptibility genes BRCA1 and BRCA2 are estimated to account for more than half of these cases. Recent studies have suggested that breast cancers associated with BRCA1 germline mutations are of higher grade than sporadic cases. The purpose of this investigation was to determine if there are significant pathologic and biologic differences between hereditary BRCA2 related breast carcinomas and non-hereditary breast cancers. Forty cases of hereditary breast cancer from families associated with a specific 999del5 BRCA2 mutation were compared with regard to histologic and biologic factors to an age matched control group. Thirty-four patients (85%) had ductal carcinoma, two had lobular carcinoma, and one patient had medullary carcinoma. Compared to the control group, the BRCA2 tumors had less tubule formation (p = 0.02), more nuclear pleomorphism (p = 0.02), and higher mitotic rates (p = 0.002), and were thus of higher histologic grade (p = 0.003). By flow cytometry the BRCA2 tumors also had significantly higher S-phase fractions than the control tumors (p = 0.02). Significant differences in axillary lymph-node involvement or ploidy status were not detected. According to the results of this study, hereditary breast cancers associated with the 999del5 BRCA2 mutation are high grade tumors with a rapid proliferation rate. Other or additional factors than the defining BRCA2 mutation are involved in determining the tumor type.
journal_name
Breast Cancer Res Treatjournal_title
Breast cancer research and treatmentauthors
Agnarsson BA,Jonasson JG,Björnsdottir IB,Barkardottir RB,Egilsson V,Sigurdsson Hdoi
10.1023/a:1005853022804subject
Has Abstractpub_date
1998-01-01 00:00:00pages
121-7issue
2eissn
0167-6806issn
1573-7217journal_volume
47pub_type
杂志文章abstract：PURPOSE:Myeloperoxidase (MPO) is an enzyme secreted by neutrophil granulocytes as a result of phagocytosis during inflammation. In colorectal cancer, tumour infiltration by MPO expressing cells has been shown to be independently associated with a favourable prognosis. In this study, we explored the role of MPO-positive...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-019-05336-3
更新日期：2019-10-01 00:00:00
abstract：:Previously we have shown that exercising rats prior to administration of 50 mg NMU/kg (high dose) significantly decreased tumor multiplicity, but not incidence or latency. We hypothesized that the dose of NMU saturated the system such that the exercise intervention was overshadowed. Therefore, the purpose of this inve...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1023/a:1005838721890
更新日期：1998-01-01 00:00:00
abstract：:In contrast to deoxyribose or arabinose containing nucleoside analogs that are currently established for cancer therapeutics, 8-chloro-adenosine (8-Cl-Ado) possesses a ribose sugar. This unique nucleoside analog is RNA-directed and is in a phase I clinical trial for hematological malignancies. RNA-directed therapies a...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-009-0481-3
更新日期：2010-06-01 00:00:00
abstract：BACKGROUND:High insulin levels have been associated with poor outcomes in breast cancer. Our goal was to investigate whether hyperinsulinemia was associated with insulin resistance in a cohort of newly diagnosed locoregional breast cancer patients and to examine associations of hyperinsulinemia with the broader insulin...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-008-0019-0
更新日期：2009-04-01 00:00:00
abstract：BACKGROUND:In 2003, for the first time, US breast cancer incidence rates have fallen. Experts argue whether this is due to the reduced uptake of screening mammography or to lower use of Hormone Replacement Therapy (HRT). This study aims to disentangle the respective impact of screening and HRT on age-incidence rates an...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-007-9554-3
更新日期：2008-02-01 00:00:00
abstract：INTRODUCTION:To examine the trends in the prevalence of breast cancer risk factors in relation to breast cancer incidence trends and to explore whether the changes in risk factors differed by ethnicity in Hawaii over a 25-year period. METHODS:We pooled 17 population-based epidemiological studies conducted in Hawaii be...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-005-9129-0
更新日期：2006-07-01 00:00:00
abstract：:In breast cancer, the survival rate strongly depends on the number of lymph nodes involved. A drug with a specific inhibitory activity on lymph node and organ metastases would therefore be a candidate for adjuvant therapy after surgery. Prostacyclin and its stable analogues have been shown to interfere with certain st...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章,评审
doi：10.1007/BF01803791
更新日期：1996-01-01 00:00:00
abstract：PURPOSE:Breast cancer is the most common cancer among females worldwide. Axillary lymph node involvement is an important prognostic factor in pre-operative evaluation. The aim of this study was to evaluate the sensitivity and accuracy of AUS during the initial breast cancer diagnosis and the contribution of ultrasound ...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-020-05830-z
更新日期：2020-10-01 00:00:00
abstract：:This is the consensus statement regarding the clinical utility of DNA cytometry in breast cancer from the DNA Cytometry Consensus Conference held in Prout's Neck, Maine, USA, on October 1-4, 1992. Guidelines for clinical DNA cytometry generated at that meeting also appear in this issue of Breast Cancer Research and Tr...
journal_title：Breast cancer research and treatment
pub_type： 共识发展会议,杂志文章,评审
doi：10.1007/BF00666357
更新日期：1993-10-01 00:00:00
abstract：:The widespread use of mammography has resulted in the detection of an increasing number of small invasive breast cancers, i.e. those that are 1cm and smaller. Patients with these small cancers generally have a low incidence of axillary lymph node metastases, and this has led some to question the routine use of axillar...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章,评审
doi：10.1023/a:1006130911110
更新日期：1998-01-01 00:00:00
abstract：:The objective of this study was to determine the conversion rate of human epidermal growth factor receptor 2 (HER2), estrogen receptor (ER) and progesterone receptor (PR) between primary tumors and metastatic lesions in advanced breast cancer. Patients with suspected diagnosis of locally recurrent or metastatic breast...
journal_title：Breast cancer research and treatment
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1007/s10549-013-2825-2
更新日期：2014-02-01 00:00:00
abstract：PURPOSE:The main objectives of this study were to identify risk factors for local in-breast tumor recurrence after breast-conservation and to evaluate the impact of IBTR (in-breast tumor recurrence) on overall survival. METHODS:A total of 335 consecutive patients with 346 invasive and in situ breast cancers were treat...
journal_title：Breast cancer research and treatment
pub_type： 临床试验,杂志文章
doi：10.1007/s10549-008-0187-y
更新日期：2009-07-01 00:00:00
abstract：:The mechanism of action of the pure antiestrogens ICI 164384 and ICI 182780 has been investigated. Both antagonists are steroidal antiestrogens with 7 alpha-alkylamide side-chains. The antiestrogens reduce the cellular content of the estrogen receptor by reducing the half-life of the protein. A potential mechanism for...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/BF00689686
更新日期：1993-01-01 00:00:00
abstract：:Interleukin-6 (IL-6) and interleukin-11 (IL-11) are frequently produced by breast cancer cells. These interleukins promote osteoclast formation and may mediate osteolysis at the site of breast cancer bone metastases. Transforming growth factor-beta (TGF-beta), tumor necrosis factor-alpha (TNF-alpha) and interleukin-1b...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1023/a:1024443303436
更新日期：2003-07-01 00:00:00
abstract：:The epidermal growth factor receptor (EGFR) is expressed in benign and malignant breast epithelium. The EGFR, when mutated or over-expressed in the presence of its ligand, is transforming in other tissues or cell types. It is therefore of major interest in the pathogenesis of human breast cancer to understand the role...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/BF00666176
更新日期：1994-01-01 00:00:00
abstract：:The potential advantage of using quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) methodology to detect metastasis in sentinel lymph nodes (SLNs) of breast cancer (BC) patients was evaluated in this prospective study. We measured the expression of relevant gene transcripts in SLNs using an innova...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-011-1710-0
更新日期：2011-12-01 00:00:00
abstract：:Metformin may reduce the incidence of breast cancer and enhance response to neoadjuvant chemotherapy in diabetic women. This trial examined the effects of metformin on Ki67 and gene expression in primary breast cancer. Non-diabetic women with operable invasive breast cancer received pre-operative metformin. A pilot co...
journal_title：Breast cancer research and treatment
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1007/s10549-011-1612-1
更新日期：2011-08-01 00:00:00
abstract：:This study describes the inhibitory effect of 5 alpha-dihydrotestosterone (5 alpha-DHT) and its precursors testosterone (T) and androst-4-ene-3,17-dione (delta 4-DIONE) on the growth of the estrogen-sensitive human breast cancer cell line ZR-75-1. In the absence of estrogens, cell proliferation measured after a 12-day...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/BF01805942
更新日期：1988-10-01 00:00:00
abstract：PURPOSE:To examine the outcomes of endocrine naive patients treated with tamoxifen as initial endocrine therapy for metastatic breast cancer. Data were obtained from the long-term follow-up of two previously published randomized trials. PATIENTS AND METHODS:All patients received tamoxifen 20 mg po in a single daily do...
journal_title：Breast cancer research and treatment
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1023/a:1005758127114
更新日期：1997-02-01 00:00:00
abstract：PURPOSE:To compare the prognostic significance of proliferation, as assessed by Ki67 expression, in breast cancer before and after neoadjuvant chemotherapy. METHODS:A retrospective search of a prospectively maintained clinical database was performed to identify patients treated with neoadjuvant chemotherapy at the Roy...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-008-0081-7
更新日期：2009-07-01 00:00:00
abstract：BACKGROUND:Breast cancer is characterized by malignant transformation of epithelial cells, but stromal cells also play an important role in tumorigenesis. While tumor-derived fibroblasts display unique phenotypic properties, it is unclear whether they also represent are a specific subpopulation. MATERIALS AND METHODS:...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-007-9725-2
更新日期：2008-07-01 00:00:00
abstract：:In the present report, we retrospectively analyzed the impact of the timing of surgery during menstrual cycle on disease-free and overall survival of 248 premenopausal patients with stage I/II breast cancer who underwent surgery followed by anthracycline-containing adjuvant chemotherapy. With a median follow-up of 5 y...
journal_title：Breast cancer research and treatment
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1023/a:1006276120841
更新日期：1999-06-01 00:00:00
abstract：:The aim of this study is to identify and validate copy number aberrations in early-stage primary breast tumors associated with bone or non-bone metastasis. Whole-genome molecular inversion probe arrays were used to evaluate copy number imbalances (CNIs) in breast tumors from 960 early-stage patients with information a...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-013-2796-3
更新日期：2014-01-01 00:00:00
abstract：:Integrins are cell surface receptors, which mediate cell-to-cell and cell-to-extracellular matrix adhesion. Some of them, e.g. alpha(V)beta(3), alpha(IIb)beta(3) and alpha(2)beta(1), have been suggested as key players for cancer development and tumor metastasis. Two polymorphisms in the gene for the alpha(2) component...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-005-9089-4
更新日期：2006-05-01 00:00:00
abstract：:The aim of this study was to compare the effects on health-related quality of life (HRQOL) of two treatment regimens in the TEX trial during 9 month from random assignment, with emphasis on the 2- and 9-months assessments. A total of 287 patients were randomized to treatment in 3-week cycles with either epirubicin plu...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1007/s10549-010-1084-8
更新日期：2010-10-01 00:00:00
abstract：:Sustained breast cancer growth and metastasis requires paracrine signals between the tumor cells and the normal surrounding host tissue. One crucial function of these signals is to recruit endothelial cells and thus new blood vessels for the nourishment of the expanding tumor mass. This proliferation and migration of ...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章,评审
doi：10.1007/BF00666148
更新日期：1994-01-01 00:00:00
abstract：:Clinical evidence regarding the value of MRI for therapy responses assessment in breast cancer is increasing. The objective of this study is to compare the diagnostic capability of diffusion-weighted MR imaging (DW-MRI) and contrast-enhanced MR imaging (CE-MRI) to evaluate and predict pathological response in breast c...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章,meta分析,评审
doi：10.1007/s10549-012-2033-5
更新日期：2012-08-01 00:00:00
abstract：PURPOSE:Body composition parameters including low muscle mass, muscle attenuation (which reflects muscle quality) and adipose tissue measurements have emerged as prognostic factors in cancer patients. However, knowledge regarding the possibility of excessive muscle loss during specific systemic therapies is unknown. We...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-017-4574-0
更新日期：2018-02-01 00:00:00
abstract：:Mammographic density (MD) is a strong marker of breast cancer risk, but it is debated whether the association holds, and is of a similar magnitude, for different subtypes of breast cancer defined by receptor status or gene expression profiles. A literature search conducted in June 2012 was used to identify all studies...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章,meta分析
doi：10.1007/s10549-012-2362-4
更新日期：2013-01-01 00:00:00
abstract：:Recent compelling evidence indicates that mutation, aberrant expression, and dysregulation of microRNA (miRNA) biogenesis are implicated in cancer development and progression. Based on the important role of miRNA biogenesis pathway in carcinogenesis, we hypothesized that genetic variations in this pathway genes may pl...
journal_title：Breast cancer research and treatment
pub_type： 杂志文章
doi：10.1007/s10549-011-1656-2
更新日期：2011-12-01 00:00:00
